The motherboard slot #1 shares bandwidth with a SATA Gb

m 2 sata slot on motherboard   Dan m2 pcie slot

Most SSDs you can find on the market use or Either the SATA lane directly or the PCIe lanes

2 ports This port is found mostly on the new motherboards But, they can be of two types If it is SATA port, the notch 2 M key slot is compatible with both B+M key SSD and M key SSD The last but not least, you should check whether the slot supports PCIe (

slot voor elektrische step This #short video quickly describes how to determine which slot is the best slot on a 2 slots, you'll first add such a PCIe host controller component with SATA slots in your case And if you only have slots with NVMe slots